My girlfriend and I have had the occasional spell of this - lesbian bed death. Probably only natural, really, as we've been together for a long time now, and any relationship is likely to have the odd rut.
For us, it was less that the sex itself lacked novelty, more that the realities of everyday life had taken the zing out of the intimacy between us. Living together, and sharing a bed, had become more functional than romantic. So when we made love, during that period, it felt more like going through the motions than a lusty, exciting experience.
I began to notice that, unlike before, she didn't always orgasm during sex, which upset me because until then we'd had a wonderful sex life, which she'd always found very satisyfing.
We sorted all this out, I'm glad to say, and partly because I found the gumption to bring the subject up properly so we could talk through it. That cleared the air and helped bring a freshness to things when we were in bed.
One other thing we did is what I'd recommend to you, Chels. Why don't you - and it's very simple - just take your girlfriend away for a change of scenery? I took mine away for a surprise romantic trip - just a few nights in a really sweet hotel in a seaside village we both like. It didn't need to be anything flashy - just the intimacy of spending days and nights together in a different environment, with no chores to worry about, and a bit of luxury.
In my experience, romance is sexy - and exciting - in itself. And that trip really worked for us - long walks hand-in-hand, the change of air, a bottle of champagne, and the fun of sleeping - and having sex - in a luxurious hotel bed. That first night, we had a beautiful love-making session, and I think what did the trick for us was the occasion gave us the chance to celebrate our relationship and our love for each other - and in turn that brought the excitement back to sex.
I know that all this must sound awfully corny and soppy - a bit Mills and Boon! - but it's true, and it worked!